Surface ornamentation for a diamond



FIG. 1 is a top view of a surface ornamentation for a diamond illustrating a new Design.

FIG. 2 is a side view of the surface ornamentation for a diamond shown in FIG. 1; and,

FIG. 3 is a bottom view of the surface ornamentation for a diamond shown in FIG. 1.

The broken line showing of gemstone facet edges in FIGS. 1-3 is included for the purpose of illustrating environmental matter and forms no part of the claimed design. 

CLAIM The ornamental design for a surface ornamentation for a diamond, as shown and described. 